Paper-making machine.



No. 694,427 Patented Mari 4,1902. T. H. SAVERY.

PAPER MAKING MACHINE.

(Application filed June 25, 19014 (No Model.) 2 Sheets-Sheet l.

flu: norms PETERS co. PNcTuLlTnu, WASHINGTON. D. c.

Patented Mar. "i902.

T H. SAVERY. PAPER MAKING MACHINE.

(Application filed June 25,, 1901.) 2 sheets sheet 2 I In vanib 7" 77 Tn: mums wz'rsns no. PNmO-UTHD" WASHINGTON. o e.

UNITEDv STATES PATENT OFFICE.

THOMAS H. SAVERY, OF WILMINGTON, DELAWARE.

PAPER-MAKING MACHINE.

SPECIFICATIQN forming part of Letters Patent N 0. 694,427, dated March 4, 1902.

A plication filed June 25, 1901. berial No. 65,908. (No model.)

To all whom it may concern: 7

Be it known that I, THOMAS I-LSAVERY, a citizen of the United States, residing at Wilmington, county of Newcastle, and State of Delaware, have invented certain new and useful Improvements in Paper-Making Machines, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

This invention relates to certain improvements in paper-making machines, and more particularly to paper-making machines of the Fonrdriniertype. In paper-makingmachines of the Fourdrinier type, as is well known, a making-wire is employed. This wire runs from the couch-roll to and around the breastroll, which is located at the extreme end of the machine, and after passing around the breast-roll it runs over suitable guides back to the, couch-roll. It is customary in such machines to drive the couch-roll, said roll operating to drive the making-wire, which in turn drives the breast-roll. The length and width of themaking-wire in such machines have of late years been constantly increasing, and the length and diameter of the breastroll have increased in proportion, so that at the present time the breast-rolls are very long and heavy, being in some instances one hundred and sixty inches in length and sixteen inches in diameter. The strain imposed upon the making-wire by driving the heavy breastroll is very considerable, and if, furthermore, this roll does not move at the same surface speed as the making-wire the wire will nee-- essarily slip on it and wear.

It is the object of this invention to produce a paper-making machine of the type referred to in which means independent of the wire shall be provided for driving the breast-roll.

With this and other objects in view the invention consists in certain constructions and mit vertical adjustment of the frame.

an end view of the construction shown in Fig. l

1, the View being taken in the direction of the arrow 2 in said figure. Fig. 3 Lara plan view, and Figs. 4 and 5 are detail views'illustrating modified forms of construction.

Referring to the drawings, which illustrate one embodiment of the invent-ion, 1 indicates the fixed portion of the frame of the machine. This fixed portion of the frame serves to support the usual suction-boxes 2 and has -pivshaped frame being further connected to the rails by means of struts 5. This U-shaped frame serves to support the breast-roll 6, this roll being mounted in suitable bearings 7,.

carried on said frame.

The shaking frame may be'operated in any suitable manner. Preferably, however, as in the patent referred to, it will be supported on springs 8, the connections between the frame and the springs beingsueh as to per- As shown, the frame is vibrated by means of a rotating crank mechanism 9 and a springpitman 10, the vibrating action being assisted by means of springs 11, mounted on a rod 1-2 and bearing against forks 13, carried on the U-shaped frame, the construction being substantially that described in the patent before referred to. At the other end of the stationary frame the couch-roll 14 is mounted, said roll, as shown, being supported in suitable bearings in standards 15. The wire 16 passes around the couch-roll, over the suction-boxes 2, over the table-rolls 17, over the breast-roll, and then is returned over suitable guides 18 to the couch-roll. As is customary in Fourdrinier machines the couchroll is driven, and the mechanism employed for this purpose may be of any suitable construction. As shown, the machine is provided with a power-shaft 19, said shaft carrying a suitable pulley 20, around which runs a belt 21, said belt being driven from any suitable source of power. The shaft 19 is provided with a bevel-gear22,said gear meshing with a bevel-gear 23, which is mounted on a shaft 24, said shaft being suitably connected, as by means of clutch-collars 25, to the couch-roll shaft.

According to the present invention the breast-roll is driven independently, therebyrelieving the making-wire of the great strain which is imposed upon it'when it drives this roll. The power for driving the breast-roll may be derived from any suitable source of power, and the means by which it is driven may be of any desired construction. Preferably ,however,as in the construction shown, the breast-roll will be driven from the powershaft which drives the couch-roll. The driving connections between the power-shaft and the breast-roll may be widely varied. As shown, a driven or counter shaft 26 is used, which shaft may be located either above, below, or alongside the machine. As shown, it is located below the machine and below the floor upon which the machine is mounted, being supported in suitablehangers 27. This shaft is provided with a belt-pully 28 and is driven by means of a belt 2!! from a beltpulley 30 on the power-shaft 19.

At the forward end of the machine and also below the floor which supports the machine there is provided a short shaft 31, said shaft being supported in suitable hangers 32. This short shaft 31 is provided with a bevel-gear 33, which meshes with another bevel-gear 34, mounted on the shaft 26. A third shaft 35 is provided in the construction shown, said shaft being supported in suitable bearings on standards 36. This shaft 35 carries a beltpulley 37, said pulley being driven by means of a belt 38 from a belt-pulley 30 on the shaft 31, before referred to.

It may be here remarked that it is desirable to provide means which will compensate for any inequality between the surface speed of the wire and the breast-,roll, this compensating means being of such a character as to insure that the breast-roll will always move at the same surface speed as the wire, for if the two do not move at the same surface speed the wire will rub on the roll and become worn. The compensating means employed may be variously constructed and may be located at any suitable point in the driving connections. In the form of machine shown, however, the belt 38 is so constructed that it will slip with relation to its driving-pulleys. Should, therefore, the driving mechanism tend to drive the shaft 35, which carries the belt-pulley 37 and which is connected to the breast-roll shaft by means to be hereinafter described, at a speed which will cause the surface of the breast-roll to move at a speed which does not correspond to the speed of the wire, the belt will slip with relation to its pulleys. Any tendency to drive the breast-roll at a surface speed which does not correspond to the speed of the wire will therefore be immediately corrected by this compensating mechanism.

The connections between the shaft 35 and the breast-roll shaft may be of any suitable character, but should be such to permit the lengthwise movement of the breast-roll shaft due to the movement of the shaking frame.

In the preferred form of the construction a flexible shaft 40 is provided, said shaft being connected to the shaft 35 and to the breastted to have the lengthwise movement due to the action of the shaking frame. struction the shaft 35 is connected directly to In this conthe breast-roll shaft and is mounted in bearings 41, said bearings being adjustably connected to spring-supports 42, which correspond in all respects to the spring-supports 8,

on which the shaking'section is mounted. As the shaking section is vibrated, therefore, the spring-supports 42 will also be vibrated, and the shaft 35 will partake of the movements of the breast-roll shaft. The belt 38 will of course permit the sidewise movement of the pulley 37, especially in view of the fact that the amplitude of the vibrations of the pulley are small. When the slipping belt is employed as a compensating device, means should be provided to control the tension of the belt with accuracy. In the construction shown, therefore, there is provided a belttightener which consists of a pulley 43, said pulley being mounted in bent levers'44, which are loosely supported on the shaft35. These bent levers 44 are connected to a perforated block 45, through which passes a vertical shaft 46, said shaft being provided with a handwheel 47 and at its lower end engaging a threaded bearing in a block 48, secured at any suitable pointas, for instance, to the floor which supports the machine. This vertical shaft carries a collar 49, which bears upon the perforated block 48. A lock-nut 50 may be employed to hold the shaft in adjusted position.

In Fig. 5 there is illustrated a modification of the form of compensating mechanism employed. In the construction shown in this figure the shaft 35 is provided with a gearwheel 51, which meshes with a pinion 52 on a counter-shaft 53. This counter-shaft 53 carries a friction-disk 54, which engages .with a friction-driver 55, said driver being mounted on a shaft 56, which may be driven in any suitable manner-as, for instance, by means of a belt.

parent that should the driving mechanism tend to move the breast-roll at a speed dif- WVith this construction it is ap-' fere'nt from that at which the wire moves a" slip will occur betweenthe driver 55 and the friction-disk 54c.

While the means described for carryingout the invention are effective for the purpose, it is to be understood that the invention may be embodied in means differing. widely in character. The invention is not, therefore, to be confined to the specific construction herein shown and described.

\Vhat is claimed is 1. In a paper-making machine, the combination with the making-wire and the breastroll, of means for driving thewire, and means independent of the wire for driving the breast-- roll, substantially as described.

2. In a paper-making machine, the combinationwith the making-wire, the couch-roll and the breast-roll, of means for driving the couch-roll and the wire, and means independent of the wire for driving the breast-roll, substantially as described.

3; In a paper-making machine, the combination with the making-wire, the couch-roll and the breast-roll, of a driving mechanism, connections from the driving mechanism to the couch-roll and the .wire, and connections {from the driving mechanism'tothe breastroll, substantially as described.

4:. In a paper-making machine, the combination with the making-wire, the couch-roll and the breast-roll, of means for driving the couch-roll and the Wire, and means independent of the Wire fordriving the breast-roll, said means including a compensating connection to insure that the surface speed of. the-breastroll correspond to that of the wire, substan tially as described. v

5. In a paper-making machine, the combination with the making-wire, the couch-roll andthe breast-roll, of a driving mechanism, driving connections from said mechanism to the couch-roll and the wire, and driving connections from said mechanism to the breastroll', said driving connections includinga compensating means to insure-that the surface speed of the breast-r011 correspond to that of the wire, substantially as described.

6. In a paper-making machine, the combination with the making-wire, the couch-roll, the shaking frame and the breast-roll mounted thereon, of means for driving the couchroll and the wire, and means independent of the wire for driving the breast-roll, said means being constructed to permit the movement of the shaking frame, substantially as described. 7. In a paper-making machine, the combination with the making-wire, the couch-roll,

' the shaking'frame and the breast-roll mounted thereon, of a driving mechanism, driving connections from said mechanism to the couch roll and wire, and driving connections from said mechanism to the breast-roll, said connections being constructed to permit the movement of the shaking frame, substantially as described.

8. In a paper-making machine, the combi nation with the making-wire, the couch-roll,

' the shaking frame and the breast-roll mounted thereon, adriving mechanism, driving connections from said mechanism to the couchroll and wire, and driving connections from said mechanism to the breast-roll, said connections including compensating means and i being constructed to permitthe'movement of theshaking frame,substantially as described.

9. In a paper-making machine, the combination with the making-wire, the. couch-roll and the breast-roll, of a power-shaft, driving connections from said power-shaft-to the couch-roll and the making-wire, a countershaft, driving connections between the powershaft and the counter-shaft, and driving connections from said cou n'ter-shaft to the breastroll, said connections being arranged to per-. mit. slip in order to insure that the surface speed of the breast-roll correspond to that of the wire, substantially as described.

10. In a paper-making machine, the combination with the making-wire, the couch-roll,

f the shaking frame and the breast-roll mounted thereon, of means for drivingthe couchroll and thewire, a driven shaft, driving connections from said shaft to the breast-roll shaft, said connections being constructed to permit lengthwise movement of the breastroll shaft produced by the movement of the shaking frame, substantiallyas described.

11. In a paper-making machine, the combi-.

nation with the making-wire, the couch-roll, the shaking frame and the breast-roll mountedthereon, of a power-shaft, driving connec-' tions from said shaft to the couch-roll and wire, a counter-shaft, driving connections from the power-shaft to the counter-shaft, a

pulley, driving connections including a belt from the counter-shaft to the pulley, and driving connections between the pulley and the breast-roll shaft, said connections being arranged to permit the lengthwise movement of the breast-roll shaft due to the movement of theshaking frame, substantially as described.

. 12. In a paper-making machine, the combination with the making-wire, the couch-roll,

the shaking frame and the breast-roll mount roll and the wire, a driven shaft, and driving connections from said shaft to the breast-roll, said driving connections including a slipping belt, substantiallyas described.

14. In a paper-making machine, the combination with the making-wire, the couch-roll, the shaking frame, and the breast roll mounted thereon,'of means for driving the couch roll and wire, a driven shaft,and driving connections from said shaft to the breast-roll, said driving connections including a slipping belt and a flexible shaft, substantially as described.

15. In a paper-making machine, the combination with the making-wire, the couch-roll, the shaking frame and the breast-roll mounted thereon, of a power-shaft, driving connections from the power-shaft to the couch-roll and wire, a shaft driven from the power-shaft, and driving connections from said driven shaft to the breast-roll, said connections including a slipping belt and a flexible shaft, substantially as described.

16. In a paper-making machine, the combination with the making-wire, the couch-roll, the shaking frame and the breast-roll mounted thereon, of a power-shaft, driving connections between the power-shaft and the couchroll and wire, a counter-shaft, means including a belt for driving said shaft from the power-shaft, a third shaft, driving connections including a slipping belt between the third shaft and the counter-shaft, and a flexible shaft connecting said third shaft and the breast-roll shaft, substantially as described.

17. In a paper-making machine, the combination with the making-wire, the couch-roll,

the shaking frame and the breast-roll mounted thereon, of a power-shaft, driving connections from the power-shaft to the couch-roll and the making-wire, a counter-shaft driven from the power-shaft, driving connections between the counter-shaft and the breast-roll, said driving connections including a slipping belt and means for adjusting the tension of the belt, substantially as described.

18. In a paper-making machine, the combination with the making-wire, the couch-roll, the shaking frame and the breast-roll mounted thereon, of a power-shaft, driving connections from the power-shaft to' the couch-roll and making-wire, a counter-shaft driven from the power-shaft, and driving connections including a slipping belt and a flexible shaft between the counter shaft and the breast-roll, and a belt-tightener for adjusting the tension of the belt, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

THOMAS II. SAVERY.

Vitncsses:

A. BALDERSTON, R. E. CHAMBERS. 

